Home / 4,945.50-7,417.70-1,247.73

Finding the Fourth Proportional to 4,945.50, 7,417.70 and 1,247.73

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Solution

The fourth proportional to 4,945.50, 7,417.70 and 1,247.73 is: 1,871.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,945.50 : 7,417.70 = 1,247.73 : x
  2. Step 2: Convert to fraction form
    4,945.50/7,417.70 = 1,247.73/x
  3. Step 3: Cross multiply
    4,945.50x = 7,417.70 × 1,247.73
  4. Step 4: Simplify right side
    4,945.50x = 9,255,286.82
  5. Step 5: Solve for x
    x = 9,255,286.82/4,945.50
  6. Step 6: Final answer
    x = 1,871.46

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Half scale
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Double scale
Find fourth proportional to 4,946.50, 7,419.20 and 1,248.73
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.